2123361894976 has 63 divisors (see below), whose sum is σ = 4901660553657. Its totient is φ = 909977268480.

The previous prime is 2123361894961. The next prime is 2123361895001. The reversal of 2123361894976 is 6794981633212.

It is a happy number.

The square root of 2123361894976 is 1457176.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2090846592576 + 32515302400 = 1445976^2 + 180320^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 81588846 + ... + 81614866.

Almost surely, 2^{2123361894976} is an apocalyptic number.

2123361894976 is the 1457176-th square number.

It is an amenable number.

2123361894976 is an abundant number, since it is smaller than the sum of its proper divisors (2778298658681).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123361894976 is an frugal number, since it uses more digits than its factorization.

2123361894976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52068 (or 26030 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 61.

The spelling of 2123361894976 in words is "two trillion, one hundred twenty-three billion, three hundred sixty-one million, eight hundred ninety-four thousand, nine hundred seventy-six".